| commit | 7489aec8eed4f2f1eb3b4d35763bd3ea30b32ef5 | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <eric.dumazet@gmail.com> | Mon May 31 16:41:35 2010 +0200 |
| committer | Patrick McHardy <kaber@trash.net> | Mon May 31 16:41:35 2010 +0200 |
| tree | fe2450679dc217183421e606b3912641545596bd | |
| parent | c936e8bd1de2fa50c49e3df6fa5036bf07870b67 [diff] |
netfilter: xtables: stackptr should be percpu commit f3c5c1bfd4 (netfilter: xtables: make ip_tables reentrant) introduced a performance regression, because stackptr array is shared by all cpus, adding cache line ping pongs. (16 cpus share a 64 bytes cache line) Fix this using alloc_percpu() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-By: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>